<?php

/**
 * This is the model class for table "{{questao}}".
 *
 * The followings are the available columns in table '{{questao}}':
 * @property integer $id_questao
 * @property integer $id_questionario
 * @property string $descricao_questao
 *
 * The followings are the available model relations:
 * @property Alternativa[] $alternativas
 * @property Eixo[] $tbEixos
 * @property Questionario $idQuestionario
 * @property Resposta[] $respostas
 */
class Questao extends CActiveRecord
{
	/**
	 * Returns the static model of the specified AR class.
	 * @param string $className active record class name.
	 * @return Questao the static model class
	 */
	public static function model($className=__CLASS__)
	{
		return parent::model($className);
	}

	/**
	 * @return string the associated database table name
	 */
	public function tableName()
	{
		return '{{questao}}';
	}

	/**
	 * @return array validation rules for model attributes.
	 */
	public function rules()
	{
		// NOTE: you should only define rules for those attributes that
		// will receive user inputs.
		return array(
			array('id_questionario, descricao_questao', 'required'),
			array('id_questionario', 'numerical', 'integerOnly'=>true),
			array('descricao_questao', 'length', 'max'=>200),
			// The following rule is used by search().
			// Please remove those attributes that should not be searched.
			array('id_questao, id_questionario, descricao_questao', 'safe', 'on'=>'search'),
		);
	}

	/**
	 * @return array relational rules.
	 */
	public function relations()
	{
		// NOTE: you may need to adjust the relation name and the related
		// class name for the relations automatically generated below.
		return array(
			'alternativas' => array(self::HAS_MANY, 'Alternativa', 'id_questao'),
			'eixos' => array(self::MANY_MANY, 'Eixo', '{{eixo_questao}}(id_questao, id_eixo)'),
			'questionarios' => array(self::BELONGS_TO, 'Questionario', 'id_questionario'),
			'respostas' => array(self::HAS_MANY, 'Resposta', 'id_questao'),
                        'maxFM' => array(self::STAT,'Alternativa','id_questao','select'=>'MAX(fator_multiplicativo)'),
                        'minFM' => array(self::STAT,'Alternativa','id_questao','select'=>'MIN(fator_multiplicativo)'),
		);
	}

	/**
	 * @return array customized attribute labels (name=>label)
	 */
	public function attributeLabels()
	{
		return array(
                    'id_questao' => 'Questão',
                    'id_questionario' => 'Questionário',
                    'descricao_questao' => 'Enunciado',
		);
	}

	/**
	 * Retrieves a list of models based on the current search/filter conditions.
	 * @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
	 */
	public function search()
	{
		// Warning: Please modify the following code to remove attributes that
		// should not be searched.

		$criteria=new CDbCriteria;

		$criteria->compare('id_questao',$this->id_questao);
		$criteria->compare('id_questionario',$this->id_questionario);
		$criteria->compare('descricao_questao',$this->descricao_questao,true);

		return new CActiveDataProvider($this, array(
			'criteria'=>$criteria,
                        'pagination'=>array(
                            'pageSize'=>100,
                        ),
		));
	}
}